It would be worth trying the latest version of HiJack first. I used to get several lockups a day but, touch wood, I haven't had any for a couple of weeks now. I have been keeping fairly current on HiJack versions, so try a newer version before giving up (there have been 24 releases of HiJack since the one you are using).
_________________________
Remind me to change my signature to something more interesting someday